Windlass



. `UNITED STATES PATENT CEEICE.

HENRY RICHARDS .AND CHARLES F.' WINSOR, OF BOSTON, MASSACHUSETTS.

WINDLASS.

Specicaton of Letters Patent No. 12,013, dated November 28, 1854..

To all whom t may concern Be it known that we, HENRY RICHARDS and CHARLES F. l/VINSOR, of'Boston, in the county of Suffolk .and State of Massachusetts, have invented a new and Improved Ships VVindlass and Capstan; and we do hereby declare that\ the following is a full and exact description thereof, lreference being had to the accompanying drawingsy and to the letters of reference marked thereon;

The nature of our invention consists in attaching to the bitts or the deck a screw (detached from the windlass) which encircles the windlass and the threads of which interpose b-etween the turns of cable on the windlass. By the use o-f such a screw the cable is caused to flut itself by the turning of the windlass, thus turning the chain against the stationary detached Screw.

To enable others skilled in the art to make and use our invention we will proceed vto describe its construction and operation.

le construct our windlass in the usual form and encircle it with a screw detached from the windlass and affixed to the bitts or deck of the ship.

Figure l is a front elevation of a windlass with our improvement, Fig. 2 is a view of the screw detached.

The same letters refer to the same parts in both figures.

Our improvement consists in atlixing to the windlass bits or deck a female screw encircling the windlass and crowding the chain (by the turning o-f the windlass) toward the end of the windlass from which the chain is discharged thus avoiding the usual surging of the chain.

A A are the windlass bitts; B the pass bitt; C C the windlass barrels.

rD is the screw made of wrought or cast iron.

E E are the braces.

The screw may be braced by bars across from thread to thread or the screw may be cast with a cylinder outside of the Screw (connected to it) and then Screwed to the deck or bitts or both as may be considered best by the carpenters. The windlass and the Screw may be made conical to facilitate the slipping of the chain or they may bey made straight. It will be observed that when the windlass is turned with the chain wove around it the chain is brought in contact with the screw which incloses thewindlass, but is detached from the windlass and confined to the bitts or deck. The screw causes the cable to be shoved or moved t0- ward the other end of the windlass at the same time the chain is being hove in.

A rim may be aflixed to the windlass for a corresponding rim on the screw to play around, thus bringing a part of the strain on the windlass.

Having thus fully described the nature of our invention, we'would state that, we do not claim a cam at the end of a capstan ory windlass, as that has been used before; butlVhat we do claim as our invention and desire to secure by Letters Patent is- Thescrew detached from the windlass and encircling it by which the cable is caused to flut itself by the turning of the windlass in heaving in.

HENRY RICHARDS. CHARLES F. wINSoR. 

